A ROUGH GUIDE TO BETTER MILLING: SIMPLE TECHNIQUES PUT CHIPS ON THE FLOOR AND PARTS OUT THE DOOR

摘要

TWO SHOPS HAVE FOUND THAT THEY can improve their rough-machining operations by adopting relatively simple milling techniques. Tri-Core Mold & Die Co. now rough cuts parts 33 percent faster, and Harrison Steel Castings Co. has eliminated recurring catastrophic cutter wrecks in rough-milling operations by implementing these new techniques. Tri-Core (www.tricoremold.com) in Machesney Park, Ill., uses the cutting strategy known as high-feed milling, while Harrison (www.hscast.com), of Attica, Indiana, capitalizes on tangential milling. High-feed milling involves taking shallow depths-of-cut at above-average feedrates - 400 ipm and faster. The main benefit of this technique is that it lets shops rough mill down closer to net part shapes, and do it as quickly as possible.